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Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio
Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio

Robert Grodinsky Research Model 4 Preamplifier RGB 1980s High End Audio

$ 314.16

Availability: 100 in stock
  • Brand: Robert Grodinsky Research
  • Country/Region of Manufacture: United States
  • Item must be returned within: 30 Days
  • Condition: Very clean with updated capacitors in circuit and power supply. Many early high end features
  • MPN: Model 4
  • All returns accepted: Returns Accepted
  • Return shipping will be paid by: Seller
  • Model: Model 4
  • Modified Item: Yes
  • Refund will be given as: Money Back
  • Custom Bundle: No

    Description

    Robert Grodinsky Research Preamplifier RGB 1980s High End
    Low production 1980s manufacturer of early High End Audio man. Manufactured Skokie IL. Nice clean example with some hi-fi component stacking scratches.
    Premium features: pair of daughter phono boards and four line stage boards plug into individual board sockets. Power supply capacitors and circuit capacitors have been updated with Nichicon capacitors. There are 8 or nine capacitors that are original and have not been upgraded.
    Resistors are 5% carbon composition. Relay for slow start voltage ramp up. Knobs are not ordinary - they have serrated edges. Two line output.
    Preamp is sold in working condition. Cabinet metalwork is very thick gauge powder coated steel.
    IMPORTANT - Be sure to read the Terms and Conditions of Sale
    Hardware Packing - Domestic and Outside US: Item will be wrapped with bubble wrap in two directions and double boxed. Tube Packing - Domestic and Outside US: Individual tubes (boxed or unboxed) will be wrapped with cardboard and bubblewrap and packed in strong cartons and shipped USPS Priority Mail with delivery confirmation.
    All shipment must be made with delivery confirmation service (tracking number) and insurance
    - For Example - USPS Priority Mail, UPS or FedEx Ground.
    All shipments will receive a delivery confirmation e-mail with tracking number upon shipment
    Shipping is via FedEx Ground, UPS, local pick-up, unless arrangement is made otherwise. Buyer pays shipping and Handling Fee.
    US BUYERS: Please use PayPal. INTERNATIONAL BUYERS: Please use PayPal. Alternative payment options are available.
    I reserve the right to file an eBay Non Payment Request, and re-list the item, if the buyer's remittance fails to reach my PayPal account within 48 hours. No payment buyers are inconveniencing other potential buyers. DO NOT PURCHASE IF YOU DO NOT PLAN TO PAY.
    Outside US Buyers: eBay invoice with ship cost will be generated as soon as possible after purchase for your PayPal payment. Ship cost is based on actual ship cost plus Handling Fee.
    Seller reserves the right to refuse any bids from buyers with poor feedback.
    Bidders must use their own account. Use of a friend's account or biding for a friend is not allowed. Bids will be considered an attempt to circumvent the eBay Feedback system.
    Overseas Buyers: Please do not ask me to state a false value for customs and taxation purposes. Bidder must understand this term before you bid.
    Please keep in mind when bidding for vintage vacuum tube equipment, this equipment is 35-45 years old and is subject to parts failure similar to a 35-45 year old automobile. The equipment I sell is checked out, repaired and adjusted before shipment and is sold in a best effort operating condition. I cannot be responsible for parts failure after shipment to bidder. Bidder should have a vintage tube equipment repair technician in mind should repairs or fine tuning be required during ownership of the equipment.